气候变化领域集成服务门户(CCPortal): Decline in Size-at-Maturity of European Hake in Relation to Environmental Regimes: A Case in the Eastern Ionian Sea

CCPortal

DOI	10.3390/ani14010061
	Decline in Size-at-Maturity of European Hake in Relation to Environmental Regimes: A Case in the Eastern Ionian Sea
	Legaki, Aglaia; Chatzispyrou, Archontia; Damalas, Dimitrios; Sgardeli, Vasiliki; Lefkaditou, Evgenia; Anastasopoulou, Aikaterini; Dogrammatzi, Aikaterini; Charalampous, Konstantinos; Stamouli, Caterina; Vassilopoulou, Vassiliki; Tserpes, George; Mytilineou, Chryssi; Lahnsteiner, Franz
发表日期	2024
ISSN	2076-2615
起始页码	14
结束页码	1
卷号	14 期号:1
英文摘要	Simple Summary: The European hake is under fishing pressure, both in the Atlantic and the Mediterranean waters. Moreover, in certain geographic locations, its size-at-maturity has been reported to decline over time. Understanding biological processes in marine life can assist in species stock evaluation and future management, allowing for the avoidance of population decline and diversity loss. This work focuses on exploring the variation in European hake size-at-maturity in the eastern Ionian Sea (Central Mediterranean) during the last five decades, investigating, at the same time, its relationship with environmental change. European hake, Merluccius merluccius L. 1758, is a highly valuable demersal fish species exploited in both the east Atlantic and the Mediterranean Sea. Changes in the size-at-maturity of this species have been reported in various geographic areas. Size-at-maturity is a key parameter in fishery management. Our main goal was to study the trend of the size-at-maturity of European hake in the eastern Ionian Sea (Central Mediterranean) over the last five decades. Utilizing a multi-decadal series of data for various environmental variables, we employed multivariate analyses and non-additive modeling in an attempt to identify shifts in the climatic environment of the eastern Ionian Sea and whether the maturation of the hake population could be affected by these changes. The analyses used suggest a plausible environmental regime shift in the study area in the late 1990s/early 2000s. The decrease in size-at-maturity that was detected in the last two decades may, thus, be associated with environmental changes. However, as many fish stocks already experience fishery-induced evolution, further investigation is necessary to determine whether this environmental effect is an additional stressor on a possibly already fishery-impacted population. The outcomes of this study highlight the importance of investigating the relationship between fish reproductive traits and altered environmental conditions, as the latter are generally ignored during assessments, affecting the robustness of fishery management.
英文关键词	Merluccius merluccius; maturation; climate change; regime shift; Mediterranean Sea
语种	英语
WOS研究方向	Agriculture ; Veterinary Sciences ; Zoology
WOS类目	Agriculture, Dairy & Animal Science ; Veterinary Sciences ; Zoology
WOS记录号	WOS:001139339700001
来源期刊	ANIMALS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303771
作者单位	Hellenic Centre for Marine Research; Hellenic Centre for Marine Research
推荐引用方式 GB/T 7714	Legaki, Aglaia,Chatzispyrou, Archontia,Damalas, Dimitrios,et al. Decline in Size-at-Maturity of European Hake in Relation to Environmental Regimes: A Case in the Eastern Ionian Sea[J],2024,14(1).
APA	Legaki, Aglaia.,Chatzispyrou, Archontia.,Damalas, Dimitrios.,Sgardeli, Vasiliki.,Lefkaditou, Evgenia.,...&Lahnsteiner, Franz.(2024).Decline in Size-at-Maturity of European Hake in Relation to Environmental Regimes: A Case in the Eastern Ionian Sea.ANIMALS,14(1).
MLA	Legaki, Aglaia,et al."Decline in Size-at-Maturity of European Hake in Relation to Environmental Regimes: A Case in the Eastern Ionian Sea".ANIMALS 14.1(2024).